Questions for Anand Subramanian

Offering Ad Sector
Access to Key Data,
Plus Way to Use It

Here's the idea: Just as traders turn to a terminal to monitor real-time financial data and place trades, media buyers need a similar trading desk to make it easy to buy and sell online ads.

ContextWeb, a New York-based startup, plans today to announce a system that it says fills that need. The system -- called the Adsdaq Exchange Agency Trading Desk -- lets media buyers see how their online display ads are performing on any site across the Web. The company already runs the Adsdaq ad exchange, an electronic platform for...